Fuel cell system and desulfurization system

Patent metadata

Field	Value
Publication number	US-10109875-B2
Application number	US-201715583292-A
Country	US
Kind code	B2
Filing date	May 1, 2017
Priority date	Jul 15, 2010
Publication date	Oct 23, 2018
Grant date	Oct 23, 2018

Abstract

One embodiment of the present invention is a unique fuel cell system. Another embodiment is a unique desulfurization system. Yet another embodiment is a method of operating a fuel cell system. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for fuel cell systems and desulfurization systems. Further embodiments, forms, features, aspects, benefits, and advantages of the present application will become apparent from the description and figures provided herewith.

First claim

I claim:

1. A method of making a sulfur-oxidation catalyst, comprising:
impregnating a catalyst comprising platinum with an aqueous ferric nitrate solution having an iron concentration of 10 w/v %;
removing excess liquid from the catalyst;
drying the catalyst;
calcining the catalyst.

2. The method of claim 1 , wherein the catalyst is dried at 130° C.

3. The method of claim 1 , wherein the catalyst is calcined at 400° C.

4. The method of claim 1 , wherein the catalyst is dried at 130° C. and calcined at 400° C.

5. The method of claim 4 , wherein the steps of impregnating, removing, drying and calcining produces an iron concentration of 1% to 30% by weight.

6. The method of claim 5 , wherein the steps of impregnating, removing, drying and calcining produces an iron concentration of 2% to 10% by weight.

7. The method of claim 6 , wherein the steps of impregnating, removing, drying and calcining produces an iron concentration of 3% to 7% by weight.

8. The method of claim 7 , wherein the steps of impregnating, removing, drying and calcining produces an iron concentration of 4% to 6% by weight.

9. The method of claim 1 , further comprising placing the catalyst upstream of a sulfur-oxide trap.

10. The method of claim 9 , wherein the catalyst is dried at 130° C. and calcined at 400° C.

11. The method of claim 10 , wherein the steps of impregnating, removing, drying and calcining produces an iron concentration of 1% to 30% by weight.

12. The method of claim 11 , wherein the steps of impregnating, removing, drying and calcining produces an iron concentration of 2% to 10% by weight.

13. The method of claim 12 , wherein the steps of impregnating, removing, drying and calcining produces an iron concentration of 3% to 7% by weight.

14. The method of claim 13 , wherein the steps of impregnating, removing, drying and calcining produces an iron concentration of 4% to 6% by weight.

15. The method of claim 1 , wherein the steps of impregnating, removing, drying and calcining produces an iron concentration of 1% to 30% by weight.

16. The method of claim 15 , wherein the steps of impregnating, removing, drying and calcining produces an iron concentration of 2% to 10% by weight.

17. The method of claim 16 , wherein the steps of impregnating, removing, drying and calcining produces an iron concentration of 3% to 7% by weight.

18. The method of claim 17 , wherein the steps of impregnating, removing, drying and calcining produces an iron concentration of 4% to 6% by weight.

Assignees

• Lg Fuel Cell Systems Inc
• Lg Fuel Cell Systems Inc

Inventors

• Budge John R

Classifications

• C10L3/101

  Removal of contaminants · CPC title

• C01B2203/0233

  the reforming step being a steam reforming step · CPC title

• B01D53/04

  with stationary adsorbents {(B01D53/025 takes precedence)} · CPC title

• C01B2203/1241

  Natural gas or methane · CPC title

• Y02P20/129

  Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines · CPC title